Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This science fair project idea produces varying pitches of sound.

The purpose of this science fair project is to build a basic radio.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Learn with makes water molecules work with this fun and easy science activity!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

This science fair project idea explores whether talking to a plant will help it grow.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

An home science experiment for older students that teaches about the science behind heat.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.